3. Product description
64 Festo.P.BE-CMMS-ST-G2-HW-EN 1008NH
Controller
release
START
Intermedicate curcuit
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Holding brake
current-carrying
1
0
DOUT0: READY
DOUT1: MC
DOUT2: ACK
DOUT3: ERROR
Output stage
release
1
Output stage
switched on
0
Drive is moving
1
0
t1 t1 tx t1
t
1 = 1.6 ms
tx = x ms (ZK discharges)
Fig. 3.9 Behaviour during interruption of the intermediate circuit supply (error: end stage
off immediately)
Note
The holding brake of the EMMS-ST-?SB/-SEB is not suitable for
braking the motor.
3.5.13 Oscilloscope function
The implemented oscilloscope function is an important aid to help the commissioning
party optimise the controller settings without using a separate measuring device. The
function allows important signal sequences to be recorded over time. It consists of three
blocks:
• The initialisation section which runs at low priority and performs pre-calculations for
the actual measurement process.
• The measuring section runs at a high priority in the rule interrupt and records the
measuring channels. If the trigger condition occurs, the measurement process is
cancelled after a defined number of scan steps.
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